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Is 129 a prime number or a composite number?
It is composite. It is divisible by 3.
Is 489 prime or composite?
489 is a composite number that is divisible by 3.
Is 291 a composite number?
If you can add the integers and they add up to a number divisible by 3, then the number is divisible by 3.
Is 9 composite number or a prime number?
A prime number is not divisible by any numbers except 1 and itself. A composite number is divisible by other numbers. 9 is divisible by 3, so it is a composite number.
Is 129 a composite number?
Yes. 1 + 2 + 9 = 12 12 is divisible by 3. If the sum of the digits of a number are divisible by 3, then the whole number is divisible by 3. 129 is a composite number because it divisible by a factor other than 1 and itself.
Is 129 a prime number or a composite number?
It is composite. It is divisible by 3.
Is 357 a prime or composite number?
It is a composite number because It is a divisible by 3.
Is 5661 a prime number or a composite number?
It is divisible by 3, so it is a composite number.
Why is 231 a composite number?
It is divisible by 3.
Is 21 a composite number?
It is composite. It is divisible by 3 and 7.yea
Is 489 prime or composite?
489 is a composite number that is divisible by 3.
Is 291 a composite number?
If you can add the integers and they add up to a number divisible by 3, then the number is divisible by 3.
Is 5103 a composite or prime number?
It is a composite number, because it is divisible by 3. (3^6*7).
Is 9 composite number or a prime number?
A prime number is not divisible by any numbers except 1 and itself. A composite number is divisible by other numbers. 9 is divisible by 3, so it is a composite number.
Is 129 a composite number?
Yes. 1 + 2 + 9 = 12 12 is divisible by 3. If the sum of the digits of a number are divisible by 3, then the whole number is divisible by 3. 129 is a composite number because it divisible by a factor other than 1 and itself.
Is 291 a composite or prime number?
As you can easily check, it is divisible by 3.As you can easily check, it is divisible by 3.As you can easily check, it is divisible by 3.As you can easily check, it is divisible by 3.
Is 423 a composite?
Yes, it is a composite number. It's divisible by 3. A quick way to tell if a number is divisible by 3 is to add up all the digits in the number. If their sum is divisible by 3, then the number is divisible by 3. For example, 4 + 2 + 3 = 9, and 9 is obviously divisible by 3. So, 423 must be divisible by 3. 423 divided by 3 is 141.
